Table 1.

Baseline characteristics of women in the subcohort of the Women’s Health Initiative.

Characteristic	N = 2,672
Age (yrs)^a	63.1 (± 7.2)
Body mass index (kg/m²) ^a	28.5 (± 6.0)
Parity ^a	2.6 (± 1.7)
Age at menopause (yrs)^a	46.9 (± 6.8)
Alcohol (servings/week)^a	1.8 (± 4.2)
Physical activity (METs/week^b)^a	10.9 (± 13.4)
Oral contraceptive use (% ever)	40.7
Hormone therapy use (% ever)	50.9
Age at menarche (% ≤12 yrs)	47.6
Age at first birth (% ≥30 yrs)	10.1
Education (%)
Less than high school grad	8.3
High school grad – some college	57.2
College grad	9.5
Post-college	25.0
Ethnicity (%)
White	55.0
Black	21.9
Other	23.1
Smoking (%)
Never	52.5
Former	39.7
Current	7.8
History of diabetes (%)	7.8
History of CVD (%)	9.8
History of hypertension (%)	37.9
History of cancer	6.0
Presence of the metabolic syndrome (%)	32.7

Mean (± SD)

MET, metabolic equivalent tasks (defined as the caloric need per kilogram of body weight per hour of activity divided by the caloric need per kilogram of body weight per hour at rest) per hour per week.